Quote Originally Posted by AbuMaia View Post
Huh, the nozzle heater should be on D10, with the hotbed (or relay) connected to D8. If you have a print cooling fan, it'd attach to D9.
You're right. My nozzle heater is connected to D10. I had them confused. My D08 has melted down due to either overcurrenting or loose wires (probably the latter). I'm connected to D09 as a replacement. Colin from MakerFarm has told me that it could be an issue with my mosfet. I think if I throw a diode between one of the wires I'll be fine. The LED on the board that goes off in sync with the clicking could mean that there is backlash causing the board to short for a split second.